Ricci Calculus Adopted for Gravity
With Marcel Grossmann's mathematical guidance, Einstein began using Ricci and Levi-Civita tensor calculus as the formal machinery needed to describe a relativistic gravitational field.
Albert Einstein · Event
With Marcel Grossmann's mathematical guidance, Einstein began using Ricci and Levi-Civita tensor calculus as the formal machinery needed to describe a relativistic gravitational field.

With Marcel Grossmann's mathematical guidance, Einstein began using Ricci and Levi-Civita tensor calculus as the formal machinery needed to describe a relativistic gravitational field.